bumper

It meens if one of your friends decide other plans without you knowing and dont bother telling u. or where they choose other people over you
jus say u and ur group of mates always did stuff together, then there was a party comin up and 1 of them new but didnt tell ne 1 and went himself that is a bumper
by dale maddocks January 06, 2005
Get the bumper mug.